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All results from a given calculation for PBr3 (Phosphorus tribromide)

using model chemistry: BLYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at BLYP/6-31+G**
 hartrees
Energy at 0K-8056.596625
Energy at 298.15K-8056.605569
HF Energy-8056.596625
Nuclear repulsion energy913.770001
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at BLYP/6-31+G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 377 375 10.56      
2 A1 148 148 0.01      
3 E 365 363 111.98      
3 E 365 363 111.99      
4 E 97 96 0.01      
4 E 97 96 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 723.9 cm-1
Scaled (by 0.9947) Zero Point Vibrational Energy (zpe) 720.1 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at BLYP/6-31+G**
ABC
0.03221 0.03221 0.01705

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31+G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.899
Br2 0.000 2.044 -0.128
Br3 1.770 -1.022 -0.128
Br4 -1.770 -1.022 -0.128

Atom - Atom Distances (Å)
  P1 Br2 Br3 Br4
P12.28722.28722.2872
Br22.28723.53993.5399
Br32.28723.53993.5399
Br42.28723.53993.5399

picture of Phosphorus tribromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 P1 Br3 101.399 Br2 P1 Br4 101.399
Br3 P1 Br4 101.399
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.599      
2 Br -0.200      
3 Br -0.200      
4 Br -0.200      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.725 0.725
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -68.819 0.000 0.000
y 0.000 -68.819 0.000
z 0.000 0.000 -67.761
Traceless
 xyz
x -0.529 0.000 0.000
y 0.000 -0.529 0.000
z 0.000 0.000 1.057
Polar
3z2-r22.115
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 15.667 0.000 0.000
y 0.000 15.667 0.000
z 0.000 0.000 9.623


<r2> (average value of r2) Å2
<r2> 495.180
(<r2>)1/2 22.253